<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="/tests/SimpleTest/test.css" type="text/css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=317422
-->
<window title="Mozilla Bug 317422"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <script type="application/javascript" src="/MochiKit/packed.js" />
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"/>
  <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"/>

  <style xmlns="http://www.w3.org/1999/xhtml">
    /* This makes the richlistbox about 4.5 rows high */
    richlistitem {
      height: 30px;
    }
    richlistbox {
      height: 135px;
    }
  </style>
  
  <!-- test results are displayed in the html:body -->
  <body xmlns="http://www.w3.org/1999/xhtml">
  <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=317422"
     target="_blank">Mozilla Bug 317422</a>
  </body>

  <richlistbox id="richlistbox" seltype="multiple">
    <richlistitem id="richlistbox_item1"><label value="Item 1"/></richlistitem>
    <richlistitem id="richlistbox_item2"><label value="Item 2"/></richlistitem>
    <richlistitem id="richlistbox_item3" hidden="true"><label value="Item 3"/></richlistitem>
    <richlistitem id="richlistbox_item4"><label value="Item 4"/></richlistitem>
    <richlistitem id="richlistbox_item5" collapsed="true"><label value="Item 5"/></richlistitem>
    <richlistitem id="richlistbox_item6"><label value="Item 6"/></richlistitem>
    <richlistitem id="richlistbox_item7"><label value="Item 7"/></richlistitem>
    <richlistitem id="richlistbox_item8"><label value="Item 8"/></richlistitem>
    <richlistitem id="richlistbox_item9"><label value="Item 9"/></richlistitem>
    <richlistitem id="richlistbox_item10"><label value="Item 10"/></richlistitem>
    <richlistitem id="richlistbox_item11"><label value="Item 11"/></richlistitem>
    <richlistitem id="richlistbox_item12"><label value="Item 12"/></richlistitem>
    <richlistitem id="richlistbox_item13"><label value="Item 13"/></richlistitem>
    <richlistitem id="richlistbox_item14"><label value="Item 14"/></richlistitem>
    <richlistitem id="richlistbox_item15" hidden="true"><label value="Item 15"/></richlistitem>
  </richlistbox>
  
  <listbox id="listbox" seltype="multiple" rows="5">
    <listitem id="listbox_item1" label="Item 1"/>
    <listitem id="listbox_item2" label="Item 2"/>
    <listitem id="listbox_item3" label="Item 3" hidden="true"/>
    <listitem id="listbox_item4" label="Item 4"/>
    <listitem id="listbox_item5" label="Item 5" hidden="true"/>
    <listitem id="listbox_item6" label="Item 6"/>
    <listitem id="listbox_item7" label="Item 7"/>
    <listitem id="listbox_item8" label="Item 8"/>
    <listitem id="listbox_item9" label="Item 9"/>
    <listitem id="listbox_item10" label="Item 10"/>
    <listitem id="listbox_item11" label="Item 11"/>
    <listitem id="listbox_item12" label="Item 12"/>
    <listitem id="listbox_item13" label="Item 13"/>
    <listitem id="listbox_item14" label="Item 14"/>
    <listitem id="listbox_item15" label="Item 15" hidden="true"/>
  </listbox>
  
  <!-- test code goes here -->
  <script type="application/javascript"><![CDATA[

/** Test for Bug 317422 **/
SimpleTest.waitForExplicitFinish();

function testRichlistbox()
{
  var id = "richlistbox";
  var listbox = document.getElementById(id);
  listbox.selectedIndex = 0;
  sendKey("PAGE_DOWN", id);
  is(listbox.selectedItem.id, id + "_item7", id + ": Page down should go to the item one visible page away");
  is(listbox.getIndexOfFirstVisibleRow(), 6, id + ": Page down should have scrolled down a visible page");
  sendKey("PAGE_DOWN", id);
  is(listbox.selectedItem.id, id + "_item11", id + ": Second page down should go to the item two visible pages away");
  is(listbox.getIndexOfFirstVisibleRow(), 9, id + ": Second page down should not scroll beyond the end");
  sendKey("PAGE_DOWN", id);
  is(listbox.selectedItem.id, id + "_item14", id + ": Third page down should go to the last visible item");
  is(listbox.getIndexOfFirstVisibleRow(), 9, id + ": Third page down should not have scrolled at all");
  sendKey("PAGE_UP", id);
  is(listbox.selectedItem.id, id + "_item10", id + ": Page up should go to the item one visible page away");
  is(listbox.getIndexOfFirstVisibleRow(), 5, id + ": Page up should scroll up a visible page");
  sendKey("PAGE_UP", id);
  is(listbox.selectedItem.id, id + "_item6", id + ": Second page up should go to the item two visible pages away");
  is(listbox.getIndexOfFirstVisibleRow(), 0, id + ": Second page up should not scroll beyond the start");
  sendKey("PAGE_UP", id);
  is(listbox.selectedItem.id, id + "_item1", id + ": Third page up should return to the first visible item");
  is(listbox.getIndexOfFirstVisibleRow(), 0, id + ": Third page up should not have scrolled at all");
}

function testListbox()
{
  var id = "listbox";
  var listbox = document.getElementById(id);

  // Check that a scrollbar is visible by comparing the width of the listitem
  // with the width of the listbox. This is a simple way to do this without
  // checking the anonymous content.
  ok(listbox.firstChild.getBoundingClientRect().width < listbox.getBoundingClientRect().width - 10,
     id + ": Scrollbar visible");

  var rowHeight = listbox.firstChild.getBoundingClientRect().height;

  listbox.selectedIndex = 0;
  sendKey("PAGE_DOWN", id);
  is(listbox.selectedItem.id, id + "_item8", id + ": Page down should go to the item one visible page away");
  is(listbox.getIndexOfFirstVisibleRow(), 7, id + ": Page down should have scrolled down a visible page");
  sendKey("PAGE_DOWN", id);
  is(listbox.selectedItem.id, id + "_item13", id + ": Second page down should go to the item two visible pages away");
  is(listbox.getIndexOfFirstVisibleRow(), 9, id + ": Second page down should not scroll beyond the end");
  sendKey("PAGE_DOWN", id);
  is(listbox.selectedItem.id, id + "_item14", id + ": Third page down should go to the last visible item");
  is(listbox.getIndexOfFirstVisibleRow(), 9, id + ": Third page down should not have scrolled at all");
  sendKey("PAGE_UP", id);
  is(listbox.selectedItem.id, id + "_item9", id + ": Page up should go to the item one visible page away");
  // the listScrollbox seems to go haywire when scrolling up with hidden listitems
  todo_is(listbox.getIndexOfFirstVisibleRow(), 3, id + ": Page up should scroll up a visible page");
  sendKey("PAGE_UP", id);
  is(listbox.selectedItem.id, id + "_item2", id + ": Second page up should go to the item two visible pages away");
  is(listbox.getIndexOfFirstVisibleRow(), 0, id + ": Second page up should not scroll beyond the start");
  sendKey("PAGE_UP", id);
  is(listbox.selectedItem.id, id + "_item1", id + ": Third page up should return to the first visible item");
  is(listbox.getIndexOfFirstVisibleRow(), 0, id + ": Third page up should not have scrolled at all");

  var scrollHeight = document.getAnonymousNodes(listbox)[1].lastChild.scrollHeight;
  is(scrollHeight, rowHeight * 15, id + ": scrollHeight when rows set");

  listbox.minHeight = 50;
  scrollHeight = document.getAnonymousNodes(listbox)[1].lastChild.scrollHeight;
  is(scrollHeight, rowHeight * 15, id + ": scrollHeight when rows and minimium height set");

  listbox.removeAttribute("rows");

  var availHeight = document.getAnonymousNodes(listbox)[1].lastChild.getBoundingClientRect().height;
  // The listbox layout adds this extra height in GetPrefSize. Not sure what it's for though.
  var e = (rowHeight * 15 - availHeight) % rowHeight;
  var extraHeight = (e == 0) ? 0 : rowHeight - e;

  scrollHeight = document.getAnonymousNodes(listbox)[1].lastChild.scrollHeight;
  is(scrollHeight, rowHeight * 15 + extraHeight, id + ": scrollHeight when minimium height set");

  listbox.removeAttribute("minheight");
  scrollHeight = document.getAnonymousNodes(listbox)[1].lastChild.scrollHeight;
  is(scrollHeight, rowHeight * 15 + extraHeight, id + ": scrollHeight");
}

window.onload = function runTests() {
  testRichlistbox();
  testListbox();
  SimpleTest.finish();
};
  ]]></script>
</window>
